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← HistoryWhich consequence arises when seasonal thermal expansion distorts the tympan of a brass astrolabe?
A)Latitude readings become inaccurate✓
B)Star pointer shears from overstress
C)Gear slippage amplifies error
D)Corrosion accelerates measurement ambiguity
💡 Explanation
Inaccurate latitude readings occur because thermal expansion alters angular markings of the altitude scale. These angular readings yield positional astronomic data based on observed altitude; therefore, distorted markings create offset values rather than preserving calibrated angles.
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